Fastenal interview questions

Applied for this position and got a call for an interview 3 days later to come in for an interview the following week. Went to the location for 1st interview. Got a call for 2nd interview/job shadow. Got an offer and had to go to Lab corp for drug testing.

Placed application and resume online. After that, I was contacted by the branch manager for the store in which I was applying. Interview went very well (the best interview I ever had) and was told that he would pass it along to the district manager. Received a call approximately two weeks later to schedule another interview with the district manager. Interview went a little less well than the first but still very well in my opinion and was told yet again that a third interview was required with another district manager in another location. This interview was not at all like the first two. This guy really delved into my resume' and asked many many questions about every little intricacy of the entire document, which, in my opinon should have been the topic from the first interview but it catches your expectations off guard when you become complacent with the the first two interviews. He asked me why I hadnt finished school and I told him the answer and he laughed in a good way like a good ole' boy does. He told me that given my resume and most of my jobs I have had in the past how he couldnt see how I would fit into the trainee position. I must say I was really thrown by this guy who incidently told me he had never worked for any other company but Fastenal. This left me wondering why a job that only pays $2,000 per month before taxes would need such a strenuous process for a position which pays so little. And that led me to ask myself (I wanted to ask him this) why would someone with a Bachelor's in anything even be applying for a trainee position? Isnt this at the heart of why someone labors to complete their degree? To not have to settle for such menial positions? Is it an intelligent decision to let someone in a hiring position who cant have any real empathy for applicants since they havent worked in the job market? Anyway, I am still waiting for a call but the outlook from the third interview is bleek in my opinion since it didnt go very well in comparison to the other two.